From: Andrew Duggan <aduggan@synaptics.com>
To: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>,
linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
benjamin.tissoires@redhat.com, jkosina@suse.cz
Subject: Re: NULL pointer dereference in i2c-hid
Date: Thu, 8 Jan 2015 15:58:54 -0800 [thread overview]
Message-ID: <54AF19BE.9010506@synaptics.com> (raw)
In-Reply-To: <1877487.FqOELR9dBu@xps13>
On 12/24/2014 03:53 PM, Gabriele Mazzotta wrote:
[...snip...]
>>>> Also, if you can get the firmware id from your touchpad that would also
>>>> be useful.
>>>>
>>>> $ sudo ./rmihidtool -f /dev/hidraw0
>>> firmware id: 1522295
>> Thanks, I will see if I can get any additional information on this.
>>
>> Andrew
> Hi,
>
> I think I found the source of the problem.
>
> $ ./rmihidtool /dev/hidraw1 -r 0x50 1
> 0x01 #PalmDetect Interrupt Enable, right?
Yes, 0x50 does appear to be the address of the palm detect interrupt
enable register.
> $ ./rmihidtool /dev/hidraw1 -w 0x50 0 #Disable PalmDetect Interrupt
>
> It makes more sense now that widths greater than 12 trigger the bug.
That is weird behavior and I haven't seen anything like that before. I
will file a bug to see if firmware has any idea why this is happening.
>
> Gabriele
>
Andrew
next prev parent reply other threads:[~2015-01-08 23:58 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-10 17:04 NULL pointer dereference in i2c-hid Gabriele Mazzotta
2014-12-11 8:58 ` Mika Westerberg
2014-12-11 14:03 ` Mika Westerberg
2014-12-11 18:16 ` Gabriele Mazzotta
2014-12-11 18:40 ` Andrew Duggan
2014-12-11 19:11 ` Gabriele Mazzotta
2014-12-11 19:21 ` Andrew Duggan
2014-12-11 19:40 ` Gabriele Mazzotta
2014-12-11 20:46 ` Andrew Duggan
2014-12-11 21:17 ` Gabriele Mazzotta
2014-12-11 21:34 ` Andrew Duggan
2014-12-11 21:57 ` Gabriele Mazzotta
2014-12-12 0:26 ` Andrew Duggan
2014-12-12 8:12 ` Gabriele Mazzotta
2014-12-12 19:12 ` Andrew Duggan
2014-12-24 23:53 ` Gabriele Mazzotta
2015-01-08 23:58 ` Andrew Duggan [this message]
2015-01-09 8:04 ` Gabriele Mazzotta
2015-01-10 0:29 ` Andrew Duggan
2015-01-10 1:18 ` Gabriele Mazzotta
2015-02-22 21:37 ` Gabriele Mazzotta
2015-02-24 0:30 ` Andrew Duggan
2014-12-11 18:41 ` Benjamin Tissoires
2014-12-11 19:25 ` Gabriele Mazzotta
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